Iran seizes commercial ship, U.S. forces respond.
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Iran Revolutionary Guard patrol boats fired shots at a commercial cargo ship and then intercepted the vessel, the M/V Maersk Tigris, which was crossing the Strait of Hormuz Tuesday morning, according to a senior U.S. military official.

Despite reports in some media, there are no Americans on board, the official said.

Pentagon spokesman Col. Steve Warren said it was “inappropriate” for the Iranians to fire the warning shot. The U.S. Navy has dispatched one maritime patrol and reconnaissance aircraft to observe and monitor the situation, Warren told reporters.